.frame{
    width: 400px;
    height: 400px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -200px;
    margin-left: -200px;
    border-radius: 3px;
    box-shadow: 1px 2px 10px 0px rgba(0,0,0,0.3);
    background: linear-gradient(to top right, #784ec1, #97bffb);

    font-family: 'Courier New', Courier, monospace;
    color: #fff;
}

.center{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    text-transform: uppercase; /* 字母大写 */
}

.number{
    width: 200px;
    height: 100px;
    position: relative;
    /* background-color: #fff3; */

    .one_1{
        width: 20px;
        height: 40px;
        background: #fff;
        border-radius: 3px;
        transform: rotate(50deg);
        position: absolute;
        top: 0;
        left: -16px;
        box-shadow: 0 0 13px 0 rgba(0,0,0,0.2);
        z-index: 3;
    }

    .one_2{
        width: 24px;
        height: 100px;
        background: #fff;
        border-radius: 3px;
        position: absolute;
        top: 0;
        left: 0px;
        box-shadow: 0 0 13px 0 rgba(0,0,0,0.2);
        z-index: 4;
    }

    .zero_1,.zero_2{
        box-sizing: border-box;
        width: 100px;
        height: 100px;
        border-radius: 50%;
        border: 24px solid #fff;
        position: absolute;
        top: 0;
        left: 17px;
        box-shadow: 0 0 13px 0 rgba(0,0,0,0.2);
        z-index: 2;
    }

    .zero_2{
        left: 100px;
        z-index: 1;
    }
}

.big{
    font-size: 80px;
    font-weight: 800;
    line-height: 66px;
}

.small{
    font-size: 20px;
    font-weight: 600;
    line-height: 20px;
    letter-spacing: 0.02em; /* 字符间距 */
}